Detect claps via mic

audio_detect.py

import pyaudio
import numpy as np
from time import sleep

CHUNK = 2**11
RATE = 44100

audio=pyaudio.PyAudio()
stream=audio.open(format=pyaudio.paInt16,channels=1,rate=RATE,input=True,
              frames_per_buffer=CHUNK)

while True:
    data_stream = np.fromstring(stream.read(CHUNK),dtype=np.int16)
    peak_vol=np.average(np.abs(data_stream))*2
    try:
        if peak_vol > 15000:
            print('clap')
            sleep(2)
    except KeyboardInterrupt:
        print('exiting')
        stream.stop_stream()
        stream.close()
        audio.terminate()